Oh, and bringing both things together, I was thinking about how much effort is needed to create the causes to make something positive happen. You see that in kyudo practice, where you have to very diligently set up all of the causes for a right release, and put so much effort into it. Even with masters, for whom the forms of the hassetsu are, perhaps, through repetition, rather effortless, they are clearly putting a whole lot of effort into realizing them. That’s a difference that really just occurred to me in writing that sentence, so I will have to think it through more later, but I think it is valid. If you watch some of those videos of hanshi, or just see good kyudoka live, the intensity is evident.
Probably the same intensity is needed in everything, even when no physical effort is needed.